Is the air quality good in Beijing?
As of May 12, 2026, at 1:00 PM (local time, GMT+8), air quality in Beijing, China, is poor, with AQI readings exceeding 150, classified as "unhealthy," with PM2.5 as the dominant pollutant.
While the air quality conditions today are poor, it is important to keep in mind that the average PM2.5 concentration in 2025 for Beijing was 26.8 µg/m³, corresponding to an AQI of 81 (“moderate”), which was already 5.36 times the WHO annual guideline of 5 µg/m³.
By comparison, today’s AQI is nearly twice the 2025 annual average, indicating pollution levels far above both national standards and international health guidelines.
For a complete, real-time view of current pollution levels, see Beijing's air quality map.
Beijing, China, ranked among the most polluted major cities globally as of May 12, 2026, at 1:00 PM (local time). Source: IQAir.
Air quality map of Beijing, China, as of May 12, 2026, at 1:00 PM (local time). Source: IQAir.
When will the air quality improve in Beijing?
Air quality in Beijing is forecasted to improve gradually as wind patterns shift, with stronger winds and frontal weather systems helping to break up stagnant air layers and disperse accumulated pollutants.
In May, rising temperatures and increasing rainfall frequency provide periodic relief, though ozone pollution tends to worsen during warmer months due to photochemical reactions.
More sustained improvement is expected as warmer temperatures, stronger winds, and spring rainfall help disperse pollutants, though lasting progress depends on continued emission controls and cleaner energy adoption (1).
Hourly air quality forecast for Beijing, China, as of May 12, 2026, at 1:00 PM (local time). Source: IQAir.
What is causing poor air quality in Beijing?
According to a comprehensive study by the Beijing Municipal Environmental Protection Bureau, the four leading local sources of Beijing's PM2.5 emissions are automobiles at 31.1%, coal combustion at 22.4%, industrial production at 18.1%, and construction dust at 14.3% (2).
Regional transport also plays a critical role, as polluted air masses from neighboring industrial regions in Hebei, Shandong, and Shanxi provinces combine with local emissions to worsen pollution episodes, while seasonal inversion layers during cooler nights trap cold air near the surface and prevent vertical dispersion of pollutants (3).
Analysis of black carbon aerosols during spring in Beijing shows that air masses originate predominantly from the northwest at 40.93%, with potential source areas concentrated in the Beijing-Tianjin-Hebei region and parts of Shandong, Shanxi, and Henan provinces, confirming the outsized role of regional industrial emissions in driving pollution episodes.
How can I protect myself from poor air quality?
- Get a free air quality app for real-time air quality alerts and forecasts.
- Shut doors and windows and set the HVAC to recirculate mode.
- Contribute to your community’s outdoor air quality data.
- Stay indoors when air quality is poor; if you do need to go outdoors, wear a KN95/FFP2 mask.
- Run a high-performance air purifier to filter particles, gases, and other pollutants.
